Fastening for jigging conveyers



Oct. 7, 1930. M. K. PARKHUREST `FASTENING FOR JIGGING CONVEYERS Filed Aug. 12, 1927 2 Shets-Sheet Patented Oct. 7, 1930 PATENT lorf-Tels s MALCOLM xrenxnnnsr, oF :Nr.wy YORK, N, Y;

FASTENING FOR J' IGGIN G CON VEYERS Application led Augustf12, 1927. VSerial No. 212,429.

This invention relates to conveyersfor ore, coal, gravel, etc.`1n which it 1s desired to move large quant-ities' of material from one place to another, asv for instance from a car F to 'a storagebin. In such cases there frequently arises a necessity to move the conveyer or` chute Jfrom one place to another and increasing or decreasing-its length to suit the occasion'.

This invention; therefore, has for its object the provision Aof means whereby the chuteof a conveyer and more particularly of what is commonly 'known as a jigging conveyer may be readily andeihcientlyassembled, disassembled, lengthened, shortened or any other adjustment accomplished through the actuation of a simple'locking means which is so arranged as to prevent separation or loss 'of any of the parts. i |`Another object is to providefan eective lock betweenthe sections of' the chute of a conveyer which may be actuated with a minimum of eiort and expenditure'of time;`

i A still further object is to provide a chute 525, fora jigging conveyer or the like which is readily detachable but at the same time will withstand the shocks and abuse incident to the use of the chute in transporting materials of the nature above mentioned.

Another object is to provide a sectional chute with special clamping brackets for connecting the various sections, one with another in a more advantageous manner for the purpose .ofresisting strains set up in use,

A. further "objectjis to construct a bracket which is adapted for use with a conveyer chute for coupling various sections Vofthe chute together and for ensuring againstdislocation of the various parts.

Further and more definite objects will` ap pear-from the followingspeciiicati'on, claims and drawings, in which,

Fig. 1 shows a conveyer, more particularly known as a jigger conveyer in connection `2.25 with which my improvement is described;

Fig.` 2 shows an enlarged portion `of my improved chute, the ends being broken away, and partlyin section; FigB shows across section along theline i 150 3 3 of Fig; 2, indicating thei'elations oi' the Sao can

parts ofthe chute with relation to the clampingmeans;

Fig. 4 shows asctional view along the lines 4--4 of Fig. 3, indicating the position taken by the lock washers y Fig. `5 indicates a detail view of an end of oneof the brackets which is permanently secured toeach end ofeverychute section; f

Fig. 6 shows a modified form of Washer for coacting with the-bracket; 60

Fig. 7`shows a slightly diierentform, in t section for the bracket taken alongtheline 8 8of FggS, and y Y Fig. -8 shows anothersection of the brack` ets along the lines 8--8` :of Fig. 7, the projecting parts ofthe chute being broken away.`

Referring `n iore particularly to these draw-g ings, the chuteS ofFig. 1 is assembled from a plurality of sections 1, 2, 3, etc.'` Each section is mounted-by means of roller bearing slideways 4,75 and 6, or otherwise upon supporting surfaces which may be the earth or other foundation. These slideways may be movablylpositioned in any location desired and secured by means ofposts ldriven in the 75 ground or bolts to a foundation.` .y

`The section2 isv providedwith aconnec- Y tion brace 1() to which is connected the connecting rod 11 adapted to be actuated by the actuatngmechanism 12 operated by themotor- 13. The motor 13 and actuating mechanism 12 are securely anchored to` a- Afirm foundation through the mountingV channels 14 and 15and` the motor plate 16. The motor shaft may. be provided with fa heavy` ily wheel, if desired, to maintain the speed of y the motor more nearly constant. i Y i The chute, together Withlits driving mechanism may be? so positioned that `the section 3 willbe directlyunder the discharge chu-te :61pm` which slidesthe ore, coal or other 7 material. The motor 13 having been started the Vwhole chute S will be given an oscillatory or jiggingaction whereby it is moved slowly toward the left and quickly retracted O6 to the right as by a sudden shock. This un- `even* action is accomplished by proper motion changing mechanism common in the art 4 and not shown in detail.V

@It is apparent that this jigging action proslide into a suitable bin or other storagef' means at theother end. A w

During this action and particularly Vduring the shock-like return stroke the chute is it be made as rigid, strong and light. as possible. The parts must be rmly clamped together to prevent independent movement, otherwise a breakage ofthe chute will result. In order that the chute may be Changed from one location to another and easily adapted for use the parts must be easily disconnected and assembled. Not only, does the. actionV of the reciprocating mechanism make these rej quirements diiiicult but the constant .rever beration'of hard materials within the chute sets up very deleterious vibrations.

In Fig. 2 is shown an enlarged view ofthe chutefS and the means for, securing 'the various parts together. These trough-like sections, indicated by 1, 2'and` 3 are reduced at one end 31 so thatthey williit into the full sized end of theV adjoining section'. Brackets 32 and 33 are fastened, each'toone of the adjoiningends. These arearranged with lfastening bolts 34 and-35 each of which is provided with vtwo dislied locking washers The shape of these washersis more clearly i shown inr connection' with Figs.` 3 and 4.

They are provided with a turned up collar 37 and vafflat section 138. The brackets 32 and 33 have recesses39 and 40 Jfor accommodating the collars 37 thereby securely holding the boltwhich passes through these washers, in place.

Thevbrackets are formed of two similar parts maintained in relation'with the chute byV means of rivets 42 Vand 43. or other equivaient arrangement. Itis desirable to have these rivets Ylie iushzwith theinner surface or' the chute. i f

Th ends of thefbracket parts are arranged with reversely bent and oppositely disposed terminals 44 and 45. `This'permits the bolts 35 to be inserted or Withdrawn from the opening between these terminals `asshown in Figs; 2, 3v and 5. Tf desired a washer 50, Vas shown in-Fig. 6 may be usedy instead of thoseshowmhaving a tail 51 for inserting in the recesses 39 and 40.

`Another bracket which has proven satisfactory may be formed of a single piece of sheet metal bent into the form shown at 53 and riveted ontothe chutel in the samev way,

having equivalent terminal portions 54 and 55 between which the bolt 56 may be positioned. This modified form of bracket 53 may be provided with notches 57 and 58 running across both the terminals 54 and 55. Washers 60 having projections 61 may then be slid onto the bolt 56. The bolt on being tightened will be maintained in position through the coaction of the projections and notches. j y

The'washer 50 may also be used to advantage with vthe type of bracket shown in Fig. 7. Two such washers are slid onto the `bolt and the tails 51 will be inserted in the subject to great strain. Itis desirable that openings 65 between the brackets and the chute section. When clamped by tightening the bolts'it will 'be impossible to displace themrwithout rupturing the material from which-they are made. I e

It can thus be seen that a simple means is provided for locking adjacent sections of the chute together. It may be noted that with lthe bolts andv brackets positioned at the bottom of the chute and the upper parts of the ychute having abutting edges, any force tendingY tov bend the chute downwardly at the joints will be counteracted. Since there is no force tending to raise the chute along its unsupported partsno diiic'ulty will be encountered from this. With the center line of the bolts directly at or slightly below the bottom edge of the chute the clamping force is applied at the most .advantageous point and dirt or other materials which may accumulate in theV joints will be prevented from working their way through the joints. It is preferable to arrange the chute so that the material transferred will llow from one section into the next into which thefirstsection is fitted byV means of its reduced portion.

,'With such an arrangementthef sections of the chute may be readily added one to'another or the chute disassembled for the purpose of .changing `its ylocation or any other purpose without loss of' time 'due to more complicated fastening devices. It vis only necessary that the boltsv be loosened without actually removing the nuts. The loosening need only be suiiicient to permit the .withdrawal of the collars 7 from the notches into which they fit. This vis a particularly advantageous feature inasmuch as it is usually necessary to have two nuts on each bolt, one to serve as a locknut. To remove both these nuts would lead to'their loss or misplacem'ent, lparticularly in places where ore or other conveyors or chutes are used. To prevent this the ends of the bolts may be hammered over as at 66p Furthermore the construction of the brackets, bolts and washers is such as to prevent accidental separation of the parts through vibrations incident to vtheir use.

The chute thus assembled may be used to transfer materials trom a discharge slide to a storage bin,either up van incline or down- Wardly or one chute may feedinto another of a series of such chutes where it is desired to transfer the materials over considerable` distances.

I do not desire to be limited to the exact modification shown but only to the extent indicated within the spirit and scope of the appended claims.

I claim:

l. In a conveyer chute a pluralityof sections, each section having brackets at its ends and being reduced-at one end to such a di- `mension that the outside surface will fit within the inside of another section, said bracketsbeing formed of sheet material having separated terminals and recesses and clamping means inserted between one set of terminals of each bracket of adjacent sections for clamping said sections together including retaining means insertable in said recesses for preventing displacement of said clamping means on both ends thereof.

2. In a jigging conveyer chute, a plurality of sections, brackets on the ends of each section consisting of two similar parts attached thereto in reversed position, said parts having offset ends between which av clamping bolt may be inserted and recesses in all of said brackets forretaining said clamping bolts in place.

3. In a jigging conyeyer chute, a plurality of sections, brackets on th-e ends of each section consisting of two similar parts attached thereto in reversedposition, said parts having oifset ends between which clamping bolts may be inserted, clamping bolts for said brackets having washers on each end thereof,

said washers havingV continuous right angle collars for cooperating with recesses arranged in all of saidbrackets, said clamping means thereby being detachable from the brackets only when released an appreciable distance at least the width of the collar on said washers. t p Y In testimony whereof I have signed this specification this 8th day of August, 1927. p

MALCOLM vK. PARKHURST. 

